CN115022986A

CN115022986A - Method and device used in node of wireless communication

Info

Publication number: CN115022986A
Application number: CN202110233997.5A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2022-09-06
Also published as: WO2022184080A1; US20230397289A1

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The node maintains a first timer; subsequently sending a first message in response to any one of the first set of conditions being satisfied; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state. The application provides a triggering condition of a first message under multicast and a corresponding sending method and device, so that the current state of a node is sent to a network side to ensure that a terminal can enter or be kept in an RRC (radio resource control) connection state in time when the multicast service adopts HARQ (hybrid automatic repeat request), the transmission reliability is improved, and the system performance is optimized.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a design scheme and apparatus for uplink transmission in wireless communication.

Background

The NR Rel-17 standard has begun to discuss how Multicast (Multicast) and Broadcast (Broadcast) traffic transmission is supported under a 5G architecture. In a conventional LTE (Long-Term Evolution ) and LTE-a (Long-Term Evolution-enhanced) system, a base station supports a terminal To receive a Multicast service in a Single-Cell-Point-To-Multipoint (SC-PTM) manner through an MBSFN (Multicast Broadcast Single Frequency Network). Multicast broadcast services based on NR systems will be designed more flexibly, and uplink transmissions of UEs (User equipments) will need to be redesigned.

Disclosure of Invention

Currently, retransmission for PTM (Point-To-Multipoint) transmission can be in a unicast manner or in a multicast manner. However, when the terminal needs to send uplink HARQ (Hybrid Automatic Repeat reQuest) feedback and further the base station retransmits multicast data to the terminal in a unicast manner, the terminal needs to receive the relevant configuration information first and needs to be in an RRC connected state. It is obvious that PTM transmission in Rel-17 will support a terminal to receive PTM data in an RRC (Radio Resource Control) Idle (Idle) state and an RRC Inactive state (Inactive), and how to keep the terminal performing PTM transmission in an RRC Connected state (Connected) to better support PTM performance is a problem to be solved. Meanwhile, the PTM of Rel-17 already supports the terminal to receive the unicast data and the multicast data in one frequency band at the same time, and therefore, when the configuration parameters of the unicast data and the multicast data conflict with each other, how to select the data is also a problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that although the above description uses the communications scenario of PTM as an example, the present application is also applicable to other scenarios such as unicast systems, and achieves technical effects similar to those in PTM. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to PTM) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in any node of the present application may apply to any other node, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

In order to solve the above problem, the present application discloses a method and an apparatus for uplink transmission. It should be noted that, in case of no conflict, the embodiments and features of the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict. Further, although the purpose of the present application is for cellular networks, the present application can also be used for internet of things and car networking. Further, although the present application was originally directed to multi-carrier communication, the present application can also be applied to single-carrier communication. Further, although the present application was originally intended for multicast, the present application can also be used for unicast communication. Further, although the original purpose of the present application is for the scenario of terminal and base station, the present application is also applicable to the scenario of terminal and terminal, terminal and relay, Non-Terrestrial network (NTN), and communication between relay and base station, and similar technical effects in the scenario of terminal and base station are achieved. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to the communication scenario of the terminal and the base station) also helps to reduce hardware complexity and cost.

Further, without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocol TS (technical specification)36 series, TS38 series, TS37 series.

The application discloses a method in a first node for wireless communication, comprising:

maintaining the first timer;

sending a first message in response to any one of the first set of conditions being satisfied;

wherein one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, one technical feature of the above method is that: setting said first timer, said first node sending said first message to the base station when said first timer expires, to inform the base station that said first node does not want to be handed over, i.e. remains in said first RRC state.

As an embodiment, another technical feature of the above method is: in general, when the first node has no unicast data for transmission and reaches a certain time, the base station will switch the first node to an RRC idle state or an inactive state; however, the first message informs the base station that there is transmission of multicast data by the first node even without unicast data transmission, and thus it is desirable to remain in the RRC connected state to avoid switching of RRC states to obtain performance gains from unicast retransmission of multicast and introduction of HARQ-ACK in multicast.

receiving a first signaling and a second signaling;

receiving a first signal and a second signal;

wherein the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resources of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resources of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or an RNTI (Radio Network Temporary Identifier) scrambling a CRC (Cyclic Redundancy Check) carried by the first signaling and an RNTI scrambling a CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, one technical feature of the above method is that: when the first signal and the second signal respectively correspond to multicast data and unicast data, and a receiving beam used by the first signal indicated by the first signaling is different from a receiving beam used by the second signal indicated by the second signaling, the first node determines which receiving beam is used for receiving according to priorities of the first signal and the second signal or transmission types of the first signal and the second signal.

According to one aspect of the application, comprising:

receiving target data;

wherein the behavior maintenance first timer comprises: in response to receiving the target data, starting or restarting the first timer; the target Data includes a MAC (Medium Access Control) SDU (Service Data Unit) from a DTCH (Dedicated Traffic Channel), a DCCH (Dedicated Control Channel), or a CCCH (Common Control Channel).

As an embodiment, one technical feature of the above method is that: the first timer is used for timing the time length of the first node not receiving the unicast data, and when the first node receives a unicast data, namely the target data, the first timer is re-timed.

According to one aspect of the application, comprising:

sending uplink data;

wherein the behavior maintenance first timer comprises: starting or restarting the first timer in response to transmitting the uplink data; the uplink data includes MAC SDUs from DTCH or DCCH.

As an embodiment, one technical feature of the above method is that: the first timer is used for timing a time length during which the first node does not send unicast data, and the first timer is re-timed when the first node sends a unicast data, namely the uplink data.

According to one aspect of the application, comprising:

monitoring the second message for a first time window;

determining whether to enter an RRC idle state according to whether the second message is detected;

wherein expiration of the first timer is used to trigger sending of the first message; the time of transmission of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

As an embodiment, one technical feature of the above method is that: in response to the first message, the base station explicitly tells the first node not to enter an RRC idle state via the second message.

According to one aspect of the application, comprising:

switching from a first BWP (Bandwidth Part) to a second BWP;

wherein the behavior maintenance first timer comprises: starting or maintaining the first timer in response to the behavior switching from the first BWP to the second BWP.

As an embodiment, one technical feature of the above method is that: the first node starts the first timer when an action to switch from the first BWP to the second BWP occurs while the first BWP is configured for multicast traffic transmission and the second BWP is configured for unicast traffic transmission; i.e. when the first node leaves the BWP for multicast more than a certain time, the first node needs to send the first message to inform the base station.

According to one aspect of the application, comprising:

monitoring the third message for a first time window;

determining whether to camp on the second BWP in accordance with whether the third message is detected;

wherein expiration of the first timer is used to trigger sending of the first message; the time of transmission of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP based on whether the third message is detected comprises: not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

As an embodiment, one technical feature of the above method is that: when the first node leaves the first BWP, namely the first node leaves the BWP configured with multicast transmission for too long time, the first node sends the first message and starts to detect the third message; and the third message is used as the feedback of the base station to the first message, and indicates that the first node does not reside in the second BWP and switches to the BWP supporting the multicast service.

According to an aspect of the present application, the frequency domain resources occupied by the first signal are a first set of subcarriers, the frequency domain resources occupied by the second signal are a second set of subcarriers, the first set of subcarriers and the second set of subcarriers belong to a target BWP, and the first set of subcarriers and the second set of subcarriers are orthogonal in the frequency domain.

As an embodiment, one technical feature of the above method is that: the first signal and the second signal are FDM (Frequency Division Multiplexing).

According to an aspect of the application, both the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a target set of control resources, which are associated to a first set of reference signal resources and to a second set of reference signal resources; the first domain comprised by the first signaling is used to indicate the first reference signal resource from the first set of reference signal resources of the first type; the second field comprised by the second signaling is used to indicate the second reference signal resource from the set of reference signal resources of the second type.

As an embodiment, one technical feature of the above method is that: when the first signaling and the second signaling belong to two different CORESET (Control Resource Set), the two different CORESETs are respectively associated to two different TCI (Transmission Configuration Indication) tables to respectively correspond to an Indication of a reception beam of a multicast PDSCH and an Indication of a reception beam of a unicast PDSCH (Physical Downlink Shared Channel).

According to an aspect of the present application, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set overlap; the search space set associated with the first set of control resources is associated to the first identity, the search space set associated with the second set of control resources is not associated to the first identity; the demodulation reference signals of the control signaling in the second set of control resources are quasi co-located with the demodulation reference signals of the control signaling in the first set of control resources.

As an embodiment, one technical feature of the above method is that: when the search space set for multicast scheduling signaling transmission and the search space set for unicast scheduling signaling transmission overlap, the receiving beam adopted by the search space set for unicast scheduling signaling transmission follows the receiving beam adopted by the search space set for multicast scheduling signaling transmission.

The application discloses a method in a second node for wireless communication, comprising:

receiving a first message;

wherein the sender of the first message comprises a first node that maintains a first timer and, in response to any one of a first set of conditions being met, sends a first message; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

sending a first signaling and a second signaling;

transmitting a first signal and a second signal;

wherein the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resources of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resources of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

According to one aspect of the application, comprising:

transmitting the target data;

wherein the first node receives the target data; the behavior maintenance first timer includes: in response to receiving the target data, the first node starting or restarting the first timer; the target data includes a MAC SDU from DTCH, DCCH, or CCCH.

According to one aspect of the application, comprising:

receiving uplink data;

the first node sends the uplink data; the behavior maintenance first timer includes: in response to sending the uplink data, the first node starts or restarts the first timer; the uplink data includes MAC SDUs from DTCH or DCCH.

According to one aspect of the application, comprising:

transmitting a second message in a first time window;

wherein the first node determines whether to enter an RRC idle state based on whether the second message is detected; expiration of the first timer is used to trigger the first node to send the first message; the time of transmission of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the first node detects the second message, and entering the RRC idle state when the first node does not detect the second message.

According to one aspect of the application, comprising:

determining that the first node is handed off from a first BWP to a second BWP;

wherein the behavior maintenance first timer comprises: the first node starts or maintains the first timer in response to the behavior switching from the first BWP to the second BWP.

According to one aspect of the application, comprising:

transmitting a third message in the first time window;

wherein the first node determines whether to camp on the second BWP based on whether the third message is detected; expiration of the first timer is used to trigger the first node to send the first message; a transmission time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP based on whether the third message is detected comprises: the first node does not camp on the second BWP when the third message is detected and the first node camps on the second BWP when the third message is not detected.

According to an aspect of the present application, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set overlap; the search space set associated with the first set of control resources is associated to the first identity, the search space set associated with the second set of control resources is not associated to the first identity; the demodulation reference signals for control signaling in the second set of control resources are quasi co-located with the demodulation reference signals for control signaling in the first set of control resources.

The application discloses a first node for wireless communication, including:

a first transceiver maintaining a first timer;

a second transceiver that transmits a first message in response to any one of the first set of conditions being satisfied;

The application discloses a first node for wireless communication, including:

a first transceiver to receive a first signaling and a second signaling;

a second transceiver to receive the first signal and the second signal;

wherein the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field, the second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

The application discloses a second node for wireless communication, including:

a third transceiver to receive the first message;

The application discloses a second node for wireless communication, including:

a third transceiver for transmitting the first signaling and the second signaling; and transmitting the first signal and the second signal;

As an example, compared with the conventional scheme, the method has the following advantages:

-setting said first timer, said first node sending said first message to the base station when said first timer expires, to inform the base station that said first node does not want to be handed over, i.e. remains in said first RRC state;

in general, when the first node has no unicast data to transmit and reaches a certain time, the base station will switch the first node to the RRC idle state or the inactive state; in this case, the first message informs the base station that there is multicast data transmission even if there is no unicast data transmission, and further it is desirable to remain in the RRC connected state to avoid RRC state switching, so as to obtain performance gain caused by unicast retransmission multicast and introduction of HARQ-ACK in multicast;

when the first signal and the second signal respectively correspond to multicast data and unicast data, and a receiving beam used by the first signal indicated by the first signaling is different from a receiving beam used by the second signal indicated by the second signaling, the first node determines which receiving beam is used for receiving according to priorities of the first signal and the second signal or transmission types of the first signal and the second signal;

the first timer is used to count the time length of the first node not sending unicast data, and when the first node sends a unicast data, that is, the uplink data, the first timer is counted again;

when the first BWP is configured for multicast traffic transmission and the second BWP is configured for unicast traffic transmission, the first node starts the first timer when a switch from the first BWP to the second BWP occurs; i.e. when the first node leaves the BWP for multicast more than a certain time, the first node needs to send the first message to inform the base station.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

FIG. 1 illustrates a process flow diagram for a first node according to one embodiment of the application;

FIG. 2 shows a process flow diagram of a first node according to another embodiment of the application;

FIG. 3 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 4 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

FIG. 5 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG. 6 shows a flow diagram of a first message according to one embodiment of the present application;

FIG. 7 shows a flow diagram of first signaling and second signaling according to an embodiment of the application;

FIG. 8 shows a flow diagram of target data according to an embodiment of the present application;

FIG. 9 shows a flow diagram of upstream data according to an embodiment of the present application;

FIG. 10 shows a flow diagram of a second message according to one embodiment of the present application;

fig. 11 illustrates a flow diagram for switching from a first BWP to a second BWP according to an embodiment of the present application;

FIG. 12 shows a flow diagram of a third message according to one embodiment of the present application;

FIG. 13 shows a schematic diagram of a first time window according to an embodiment of the present application;

FIG. 14 shows a schematic diagram of a first signal and a second signal according to an embodiment of the present application;

fig. 15 shows a schematic diagram of a first type of set of reference signal resources and a second type of set of reference signal resources according to an embodiment of the present application;

FIG. 16 shows a schematic diagram of a first set of control resources and a second set of control resources according to an embodiment of the present application;

FIG. 17 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the application;

fig. 18 shows a block diagram of a processing means in a first node device according to another embodiment of the present application;

fig. 19 shows a block diagram of a processing arrangement in a second node device according to an embodiment of the present application;

fig. 20 is a block diagram illustrating a configuration of a processing apparatus in the second node device according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, the first node in the present application maintains a first timer in step 101; in step 102 a first message is sent in response to any one of the conditions in the first set of conditions being met.

In embodiment 1, one condition in said first set of conditions is expiration of said first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As one embodiment, the first timer is a datainactivetytimer.

As an example, the first timer is t-PollRetransmit.

As an embodiment, the unit of the first timer is milliseconds.

As an example, the operation of the phrase "maintaining a first timer" described above includes: each time unit increments the value of the timer by 1 before expiring.

As an example, the duration of the time unit in this application is 1 millisecond.

As an example, the duration of the time unit in this application does not exceed 1 millisecond.

As an example, the duration of the time unit in this application is 1 time Slot (Slot).

As an embodiment, one condition in the first set of conditions is that a buffer for buffering MAC SDUs is empty.

For one embodiment, one condition in the first set of conditions is that the cache for caching the target data is empty.

As a sub-embodiment of this embodiment, the target data includes MAC SDUs from DTCH, DCCH, and CCCH.

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from the MTCH.

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from MCCH (Multicast Control Channel).

As a sub-embodiment of this embodiment, the target data does not include MAC SDUs from SC-MTCH (Single Carrier-Multicast Traffic Channel).

As a sub-embodiment of this embodiment, the target data does not include a MAC SDU from a SC-MCCH (Single Carrier-Multicast Control Channel).

As one embodiment, the first message includes RRC signaling.

For one embodiment, the first message includes a MAC CE.

As an embodiment, the Physical layer Channel carrying the first message includes a PUCCH (Physical Uplink Control Channel).

As an embodiment, the Physical layer Channel carrying the first message includes a PUSCH (Physical Uplink Shared Channel).

As one embodiment, the first message is sent on a unicast channel.

As an embodiment, the unicast channel in this application includes a transmission channel.

As an embodiment, the transmission Channel in this application is UL-SCH (Uplink Shared Channel).

As an embodiment, the unicast channel in this application includes a logical channel.

As an example, the logical channel in this application is DTCH.

As an embodiment, non-unicast in this application includes multicast.

As an example, non-unicast in this application includes multicast.

As an embodiment, non-unicast in this application includes multicast.

As an embodiment, non-unicast in this application includes broadcast.

As an embodiment, the non-unicast identification is a session identification (sessionID).

As an embodiment, the non-unicast Identifier is a Logical Channel Identifier (LCID) of a non-unicast Channel.

As an embodiment, the non-unicast Identity is a TMGI (Temporary Mobile Group Identity).

As an embodiment, the non-unicast identity is an RNTI.

As an embodiment, the non-unicast identity is an RNTI (Cell Radio Network Temporary identity) other than a C-RNTI.

As an embodiment, the non-unicast identity is a G-RNTI (Group Radio Network Temporary identity).

As an embodiment, the non-unicast identifier is an MBMS (Multimedia Broadcast/Multicast Service) interest indication (mbmslnterestindication).

As an embodiment, the non-unicast identity is a GC-RNTI (Group Common Radio Network Temporary identity).

As an embodiment, the non-unicast identity is SC-RNTI (Single Carrier Radio Network Temporary identity).

As an embodiment, the non-unicast identity is SC-PTM-RNTI (Single Carrier Point to Multipoint Radio Network Temporary Identifier ).

As an embodiment, the non-unicast identity is SC-SFN-RNTI (Single Carrier Single Frequency Network Radio Network Temporary identity ).

As one embodiment, the first RRC state is an RRC Connected (Connected) state.

As one embodiment, the first RRC state is an RRC Inactive (Inactive) state.

As an embodiment, the phrase "the first RRC state is an RRC inactive state" as described above includes: the first node may be capable of sending or receiving unicast data.

As an embodiment, the sending of the first message enables a receiver of the first message to obtain the current communication requirement of the first node, so that a scheduling decision meeting the requirement of the first node can be made more accurately, and thus the technical problem addressed by the present application can be solved.

As an embodiment, how the first message is utilized by the recipient of the first message is that the recipient of the first message realizes the correlation.

As one embodiment, the first message is used by a recipient of the first message to determine whether to switch the first node from the first RRC state to a second RRC state, the second RRC state being one of a set of candidate states, the set of candidate states including at least an RRC idle state.

As a sub-embodiment of this embodiment, the first RRC state is an RRC connected state and the set of candidate states includes an RRC inactive state.

As a sub-embodiment of this embodiment, the first RRC state is an RRC inactive state and the set of candidate states includes an RRC connected state.

As a sub-embodiment of this embodiment, a recipient of the first message detects the first message, the recipient of the first message maintaining the first node in the first RRC state.

As a sub-embodiment of this embodiment, a recipient of the first message does not detect the first message, the recipient of the first message switching the first node to the second RRC state.

For one embodiment, the first information is used to indicate that the first node is receiving non-unicast traffic.

As one embodiment, the first information is used to indicate that the first node is interested in non-unicast traffic.

As an embodiment, the first information is used to indicate that the first node wishes to stay in the first RRC state.

As an embodiment, the non-unicast traffic in the present application includes multicast traffic.

As an embodiment, the non-unicast traffic in the present application includes broadcast traffic.

Example 2

Embodiment 2 illustrates a processing flow diagram of another first node, as shown in fig. 2. In 110 shown in fig. 2, each block represents a step. In embodiment 2, a first node in the present application receives a first signaling and a second signaling in step 111; the first signal and the second signal are received in step 112.

In embodiment 2, the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field, the second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resources of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resources of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the first signaling is DCI (Downlink Control Information).

As an embodiment, the second signaling is DCI.

As one embodiment, the first signaling is used to schedule the first signal.

As one embodiment, the second signaling is used to schedule the second signal.

As an embodiment, the Physical layer Channel carrying the first signaling includes a PDCCH (Physical Downlink Control Channel).

As an embodiment, the Physical layer Channel carrying the first signal includes a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the physical layer channel carrying the second signaling comprises a PDCCH.

As one embodiment, the physical layer channel carrying the second signal comprises a PDSCH.

As one embodiment, the first signal is a wireless signal.

As one embodiment, the first signal is a baseband signal.

As one embodiment, the second signal is a wireless signal.

As one embodiment, the second signal is a baseband signal.

As an embodiment, the first signaling is used to indicate a time domain resource occupied by the first signal.

As an embodiment, the first signaling is used to indicate frequency domain resources occupied by the first signal.

As an embodiment, the second signaling is used to indicate a time domain resource occupied by the second signal.

As an embodiment, the second signaling is used to indicate frequency domain resources occupied by the second signal.

As an embodiment, the above sentence "there is overlap between the time domain resource occupied by the first signal and the time domain resource occupied by the second signal" includes: the first signal and the second signal occupy the same time slot.

As an embodiment, the above sentence "there is overlap in the time domain resource occupied by the first signal and the time domain resource occupied by the second signal" means that: at least one multi-carrier symbol exists and belongs to the time domain resource occupied by the first signal and the time domain resource occupied by the second signal.

As an example, the multicarrier symbol described in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multi-carrier symbols in this application are CP-OFDM (Cyclic Prefix-OFDM) symbols.

As an embodiment, the multicarrier symbol in this application is a DFT-S-ofdm (discrete Fourier Transform decoding ofdm) symbol.

As an embodiment, the multi-Carrier symbol in this application is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

As an embodiment, the first field included in the first signaling is a tci (transmission Configuration indication) field in DCI.

As an embodiment, the second field included in the second signaling is a TCI field in DCI.

As an embodiment, the first reference signal resource is associated to a TCI-State.

As an embodiment, the first Reference Signal resource includes at least one of a CSI-RS (Channel State Information-Reference Signal) resource or an SSB (Synchronization Signal/physical broadcast Channel Block).

As an embodiment, the second reference signal resource is associated to a TCI-State.

In one embodiment, the second reference signal resource includes at least one of a CSI-RS resource or an SSB.

As an embodiment, the first reference signal resource indicated by the first field comprised by the first signaling is associated to at least one of a CSI-RS resource Identity (Identity) or an SSB Index (Index).

As an embodiment, the first reference signal resource indicated by the second field comprised by the second signaling is associated to at least one of a CSI-RS resource Identity (Identity) or an SSB Index (Index).

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated to different TCI-states.

As an embodiment, the first reference signal resource and the second reference signal resource are respectively associated to different TCI-stateids.

As an embodiment, the first reference signal resource and the second reference signal resource are associated to different CSI-RS resources, respectively.

As one embodiment, the first reference signal resource and the second reference signal resource are respectively associated to different SSB indices.

As an embodiment, the above sentence that the priority of the first signal and the priority of the second signal are used for determining the target reference signal resource from the first reference signal resource and the second reference signal resource includes: the priority of the first signal is higher than the priority of the second signal, the target reference signal is the first reference signal; or the priority of the first signal is not higher than the priority of the second signal, the target reference signal being the second reference signal.

As an example, the above sentence "the priority of the first signal and the priority of the second signal are used for determining the target reference signal resource from the first reference signal resource and the second reference signal resource" means that: the priority of the first signal is not lower than the priority of the second signal, the target reference signal is the first reference signal; or the priority of the first signal is lower than the priority of the second signal, the target reference signal being the second reference signal.

As an embodiment, the above sentence that the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource includes: RNTI for scrambling CRC carried by the first signaling is RNTI except C-RNTI, RNTI for scrambling CRC carried by the second signaling is C-RNTI, and the target reference signal is the first reference signal; or the RNTI for scrambling the CRC carried by the first signaling and the RNTI for scrambling the CRC carried by the second signaling are both C-RNTIs, and the target reference signal is the second reference signal.

As a sub-embodiment of this embodiment, the transmission time of the second signaling is later than the transmission time of the first signaling.

As an embodiment, the first signaling and the second signaling occupy the same time slot.

As an embodiment, the first signal and the second signal occupy the same time slot.

As an embodiment, the first signaling is a downlink Grant (DL Grant).

As an embodiment, the second signaling is a downlink grant.

Example 3

Embodiment 3 illustrates a schematic diagram of a network architecture, as shown in fig. 3.

Fig. 3 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include a UE (User Equipment) 201, an NG-RAN (next generation radio access Network) 202, an EPC (Evolved Packet Core)/5G-CN (5G-Core Network,5G Core Network) 210, an HSS (Home Subscriber Server) 220, and an internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP, or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through the S-GW212, and the S-GW212 itself is connected to the P-GW 213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the UE201 corresponds to the first node in this application.

As an embodiment, the UE201 is a terminal capable of supporting multicast services.

As an embodiment, the UE201 supports transmission of PTMs.

For one embodiment, the UE201 supports SC-PTM transmission.

As an embodiment, the UE201 supports the transmission of multicast services over a unicast channel.

As an embodiment, the UE201 supports the retransmission of multicast data over a unicast channel.

As an embodiment, the gNB203 corresponds to the second node in this application.

As an embodiment, the gNB203 is a base station with the capability of supporting multicast services.

As an embodiment, the gNB203 supports transmission of PTMs.

As an embodiment, the gNB203 supports SC-PTM transmission.

As an embodiment, the UE201 supports multicast services transmitted over a unicast channel.

Example 4

Embodiment 4 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 4. Fig. 4 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 4 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

The radio protocol architecture of fig. 4 applies to the first node in this application as an example.

As an example, the wireless protocol architecture in fig. 4 is applicable to the second node in this application.

As an embodiment, the PDCP304 of the second communication node device is used for generating a schedule for the first communication node device.

As an embodiment, the PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the first timer is located in the MAC layer.

As an embodiment, the first timer in this application is located in the RLC layer.

As an embodiment, the first timer is located in an RRC layer.

As an embodiment, the first message in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first message in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first message in this application is generated in the RRC 306.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second signaling in this application is generated in the PHY301 or the PHY 351.

As an embodiment, the second signaling in this application is generated in the MAC302 or the MAC 352.

For one embodiment, the first signal is generated from the PHY301 or the PHY 351.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signal in this application is generated in the RRC 306.

For one embodiment, the second signal is generated from the PHY301 or the PHY 351.

As an embodiment, the second signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second signal in this application is generated in the RRC 306.

For one embodiment, the target data in the present application is generated in the PHY301 or the PHY 351.

As an example, the target data in the present application is generated in the MAC302 or the MAC 352.

As an embodiment, the target data in this application is generated in the RRC 306.

For one embodiment, the upstream data in the present application is generated by the PHY301 or the PHY 351.

As an embodiment, the uplink data in the present application is generated in the MAC302 or the MAC 352.

As an embodiment, the uplink data in the present application is generated in the RRC 306.

As an embodiment, the second message in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the second message in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second message in this application is generated in the RRC 306.

As an embodiment, the third message in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the third message in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the third message in this application is generated in the RRC 306.

As an embodiment, the first node is a terminal.

As an embodiment, the second node is a terminal.

As an example, the second node is an RSU (Road Side Unit).

As an embodiment, the second node is a Grouphead.

As an embodiment, the second node is a TRP (Transmitter Receiver Point).

As an embodiment, the second node is a Cell (Cell).

As an embodiment, the second node is an eNB.

As an embodiment, the second node is a base station.

As an embodiment, the second node is used to manage a plurality of base stations.

As an embodiment, the second node is a node for managing a plurality of cells.

As an embodiment, the second node is used to manage a plurality of TRPs (transmission reception points).

As an embodiment, the second node is an MCE (multi cell, multi case Coordination Entity).

Example 5

Embodiment 5 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 5. Fig. 5 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communications device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to a controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In a transmission from the first communications device 450 to the second communications device 410, a data source 467 is used at the first communications device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the send function at the second communications apparatus 410 described in the transmission from the second communications apparatus 410 to the first communications apparatus 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to said second communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the transmit processor 468 then modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via a transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communications device 450 to the second communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 450 means at least: first, maintaining a first timer; subsequently sending a first message in response to any one of the first set of conditions being satisfied; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: first, maintaining a first timer; subsequently sending a first message in response to any one of the conditions in the first set of conditions being satisfied; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 450 means at least: firstly, receiving a first signaling and a second signaling; subsequently receiving the first signal and the second signal; the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal are overlapped; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: firstly, receiving a first signaling and a second signaling; subsequently receiving the first signal and the second signal; the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: receiving a first message; the sender of the first message comprises a first communication device 450, the first communication device 450 maintaining a first timer, and in response to any one of a first set of conditions being met, the first communication device 450 sends a first message; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first communication device 450 is in a first RRC state when transmitting the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first message; the sender of the first message comprises a first communication device 450, the first communication device 450 maintaining a first timer, and in response to any one of a first set of conditions being met, the first communication device 450 sending the first message; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first communication device 450 is in a first RRC state when transmitting the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: sending a first signaling and a second signaling; transmitting a first signal and a second signal; the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field, the second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling and a second signaling; transmitting a first signal and a second signal; the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resources of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resources of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 is a UE.

For one embodiment, the first communication device 450 is a terminal.

For one embodiment, the second communication device 410 is a base station.

In one embodiment, the second communication device 410 is a UE.

For one embodiment, the second communication device 410 is a network device.

As an example, the second communication device 410 is a serving cell.

For one embodiment, the second communication device 410 is a TRP.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to maintain a first timer.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to maintain a first timer.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send a first message; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive a first message.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive first signaling and second signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send first signaling and second signaling.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive a first signal and a second signal; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send a first signal and a second signal.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive target data; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are used to send targeted data.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send uplink data; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 are configured to receive uplink.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to monitor for a second message; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send a second message.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are configured to determine whether to enter an RRC idle state based on whether the second message is detected.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to switch from a first BWP to a second BWP; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to determine that the first communication device 450 switches from a first BWP to a second BWP.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to monitor for a third message; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send a third message.

In one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are configured to determine whether to camp on the second BWP based on whether the third message is detected.

Example 6

Embodiment 6 illustrates a flow chart of a first message, as shown in fig. 6. In FIG. 6, the first node U1 communicates with the second node N2 via a wireless link; it should be noted that the sequence in this embodiment does not limit the sequence of signal transmission and the sequence of implementation in this application.

For theFirst node U1Maintaining the first timer in step S10; in response to any one of the conditions in the first set of conditions being met, a first message is sent in step S11.

ForSecond node N2In step S20, a first message is received.

In embodiment 6, one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As one embodiment, the receiving includes blind detection.

As one embodiment, the receiving includes demodulating.

As one embodiment, the receiving includes energy detection.

As one embodiment, the receiving includes coherent detection.

For one embodiment, the second node N2 does not know that the first node U1 sent the first message before receiving the first message.

Example 7

Embodiment 7 illustrates a flow chart of the first signaling and the second signaling, as shown in fig. 7. In FIG. 7, the first node U3 communicates with the second node N4 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U3Receiving the first signaling and the second signaling in step S30; the first signal and the second signal are received in step S31.

For theSecond node N4Transmitting the first signaling and the second signaling in step S40; the first signal and the second signal are transmitted in step S41.

In embodiment 7, the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal are overlapped; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an example, the step S30 is located after the step S11 in example 6.

As an example, the step S40 is located after the step S20 in example 6.

As an example, the step S30 is located before the step S10 in example 6.

As an example, the step S40 is located before the step S20 in example 6.

Example 8

Embodiment 8 illustrates a flow chart of target data, as shown in fig. 8. In FIG. 8, a first node U5 communicates with a second node N6 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U5In step S50, target data is received.

For theSecond node N6The target data is transmitted in step S60.

In embodiment 8, the behavior maintenance first timer includes: in response to receiving the target data, starting or restarting the first timer; the target data includes MAC SDUs from DTCH, DCCH, or CCCH.

As an example, the step S50 is located before the step S10 in example 6.

As an example, the step S60 is located before the step S20 in example 6.

As one embodiment, the target data does not include MAC SDUs from the MTCH.

As an embodiment, the target data does not include MAC SDUs from MCCH.

As an embodiment, the target data does not include MAC SDUs from SC-MTCH.

As an embodiment, the target data does not include MAC SDUs from SC-MCCH.

As an embodiment, the target data does not include MAC SDUs from MTCH, MCCH, SC-MTCH and SC-MCCH.

As one embodiment, the target data is unicast data.

Example 9

Embodiment 9 illustrates a flow chart of upstream data, as shown in fig. 9. In FIG. 9, the first node U7 communicates with the second node N8 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U7In step S70, the uplink data is transmitted.

For theSecond node N8In step S80, upstream data is received.

In embodiment 9, the behavior maintenance first timer includes: starting or restarting the first timer in response to transmitting the uplink data; the uplink data includes MAC SDUs from DTCH or DCCH.

As one example, the step S70 is located before the step S10 in embodiment 6.

As an example, the step S80 is located before the step S20 in example 6.

As an embodiment, the uplink data is unicast data.

Example 10

Embodiment 10 illustrates a flow chart of a second message, as shown in fig. 10. In FIG. 10, the first node U9 communicates with the second node N12 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

ForFirst node U9Monitoring the second message in a first time window in step S90; it is determined whether to enter an RRC idle state according to whether the second message is detected in step S91.

For theSecond node N12The second message is sent in step S120.

In embodiment 10, expiration of the first timer is used to trigger sending of the first message; a transmission time of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

As an example, the step 90 follows the step S11 in example 6.

As an example, the step 120 is after the step S20 in the embodiment 6.

For one embodiment, the step 91 includes detecting the second message and determining to enter an RRC idle state.

As one embodiment, the second message is a response to the first message.

Example 11

Embodiment 11 illustrates a flowchart for switching from a first BWP to a second BWP, as shown in fig. 11. In FIG. 11, a first node U13 communicates with a second node N14 via a wireless link; it is specifically noted that the sequence in the present embodiment does not limit the sequence of signal transmission and the sequence of implementation in the present application; where steps S130 and S140 in block F0 are optional.

ForFirst node U13Receiving a fourth message in step S130; switching from the first BWP to the second BWP in step S131.

For theSecond node N14Determining in step S140 that the first node U13 switches from the first BWP to the second BWP; the fourth message is transmitted in step S141.

In embodiment 11, the behavior maintenance first timer includes: the first timer is started or maintained in response to the behavior switching from the first BWP to the second BWP.

As an example, the step S131 is located before the step S10 in example 6.

As an example, the step S141 is located before the step S20 in example 6.

As one embodiment, the non-unicast identification is applied to data transmission on the first BWP.

As one embodiment, the non-unicast identification is not applied to data transmission on the second BWP.

As an embodiment, the starting the first timer means includes: and starting the first timer to start timing.

As an example, the maintaining the first timer means includes: maintaining the first timer to keep timing.

As one embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for MBS (Multicast Broadcast service).

As one embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for MBS.

As one embodiment, only the first BWP of both the first BWP and the second BWP includes frequency domain resources used for PTM.

As one embodiment, the second BWP is configured for unicast transmission.

For one embodiment, the first node switches from the first BWP to the second BWP when a second timer expires.

As one embodiment, physical layer dynamic signaling is used to instruct the first node to switch from the first BWP to the second BWP.

As an embodiment, the second BWP is configured through RRC signaling specific to the user equipment.

As an embodiment, the fourth message is carried by physical layer dynamic signaling.

As an embodiment, the fourth message is from the RRC layer or RLC layer of the first node U13.

Example 12

Embodiment 12 illustrates a flow chart of a third message as shown in fig. 12. In FIG. 12, the first node U15 communicates with the second node N16 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U15Monitoring the third message in a first time window in step S150; it is determined whether to camp on the second BWP according to whether the third message is detected in step S151.

For theSecond node N16A third message is sent in step S160.

In embodiment 12, expiration of the first timer is used to trigger sending of the first message; a transmission time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP based on whether the third message is detected comprises: not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

As an example, the step 150 follows the step S11 in example 6.

As an example, the step 160 follows the step S20 in the embodiment 6.

For one embodiment, step 151 includes detecting the third message and determining not to park the second BWP.

As an embodiment, the third message includes DCI.

For one embodiment, the third message includes RRC signaling.

For one embodiment, the third message includes a MAC CE.

As an embodiment, the physical layer channel carrying the third message comprises a PDCCH.

As one embodiment, the physical layer channel carrying the third message comprises a PDSCH.

As an embodiment, the third message includes a Bandwidth Part Indicator field in the DCI.

As an embodiment, the third message comprises BWP-id in TS 38.331.

As an example, the third message comprises BWP-downlink in TS 38.331.

As an embodiment, when detecting the third message, the first node U15 switches to a third BWP according to the indication of the second message.

As a sub-embodiment of this embodiment, the third BWP is the first BWP.

As a sub-embodiment of this embodiment, the third BWP is a BWP other than the first BWP.

As a sub-embodiment of this embodiment, the third BWP is configured by RRC signaling other than RRC signaling specific to the user equipment.

As a sub-embodiment of this embodiment, the third BWP is used for non-unicast traffic.

As a sub-embodiment of this embodiment, said third BWP is associated to a BWP identity for multicast.

As an embodiment, the non-unicast service in the present application includes multicast service.

As one example, non-unicast traffic in the present application is transmitted on a non-unicast channel.

As a sub-embodiment of this embodiment, the non-unicast channel includes MTCH.

As a sub-embodiment of this embodiment, the non-unicast channel comprises MCCH.

As a sub-embodiment of this embodiment, the non-unicast channel includes a PDCCH carrying a CRC scrambled by the first identity.

As a sub-embodiment of this embodiment, the non-unicast channel includes a PDSCH carrying a CRC scrambled by the first identity.

As one embodiment, the third message is a response to the first message.

Example 13

Example 13 illustrates a schematic diagram of a first time window, as shown in fig. 13. In fig. 13, the time of transmission of the first message is used to determine the first time window; the first time window occupies a positive integer number of consecutive time slots greater than 1 in the time domain.

As an embodiment, the starting instant of the first message transmission is used for determining the starting instant of the first time window.

As an embodiment, the time of arrival of the first message transmission is used to determine the starting time of the first time window.

As an embodiment, the duration of the first time window in the time domain is fixed.

As an embodiment, the duration of the first time window in the time domain is configured through higher layer signaling.

Example 14

Example 14 illustrates a schematic diagram of a first signal and a second signal, as shown in fig. 14. In fig. 14, the first signal and the second signal are FDM.

As an embodiment, the first signal is generated by one TB (Transport Block).

As an embodiment, the second signal is generated by one TB.

As an embodiment, the CRC included in the first signal is scrambled by an RNTI other than the C-RNTI.

As an embodiment, the CRC comprised by the first signal is scrambled by a G-RNTI.

As an embodiment, the CRC comprised by the first signal is scrambled by a C-RNTI.

Example 15

Embodiment 15 illustrates a schematic diagram of a first type reference signal resource set and a second type reference signal resource set, as shown in fig. 15. In fig. 15, the set of reference signal resources of the first type includes K1 reference signal resources of the first type, and the set of reference signal resources of the second type includes K2 reference signal resources of the second type; the K1 first-class reference signal resources correspond to K1 beams respectively, and the K2 second-class reference signal resources correspond to K2 beams respectively; the K1 is a positive integer greater than 1 and the K2 is a positive integer greater than 1.

As an example, the target control resource set in this application is a CORESET.

As an embodiment, the first field comprised by the first signaling is used to indicate the first reference signal resource from the K1 reference signal resources of the first type.

As an embodiment, any one of the K1 first-type reference signal resources includes at least one of CSI-RS resources or SSBs.

As an embodiment, any one of the K1 first type reference signal resources is associated to a TCI-State.

As an embodiment, any one of the K1 first type reference signal resources is associated to a TCI-StateID.

As an embodiment, any one of the K1 first type reference signal resources is associated to at least one of a CSI-RS resource identity or an SSB index.

As an embodiment, the second field comprised by the second signaling is used to indicate the second reference signal resource from the K2 reference signal resources of the second type.

For an embodiment, any one of the K2 second-type reference signal resources includes at least one of CSI-RS resources or SSBs.

As an embodiment, any one of the K2 second-type reference signal resources is associated to a TCI-State.

As an embodiment, any one of the K2 second-class reference signal resources is associated to a TCI-StateID.

As an embodiment, any one of the K2 second type reference signal resources is associated to at least one of a CSI-RS resource identity or an SSB index.

Example 16

Example 16 illustrates a schematic diagram of a first set of control resources and a second set of control resources, as shown in fig. 16. In fig. 16, there is an overlap between the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set.

As an embodiment, the search space set associated with the first set of control resources is associated to the first identity, the search space set associated with the second set of control resources is not associated to the first identity; the demodulation reference signals of the control signaling in the second set of control resources are quasi co-located with the demodulation reference signals of the control signaling in the first set of control resources.

For one embodiment, the first set of control resources is a CORESET.

For one embodiment, the second set of control resources is a CORESET.

As an embodiment, the first identity is a searchspace id.

As one embodiment, the first identification is associated to a non-unicast traffic transmission.

As an embodiment, the first identifier is a BWP-id of a BWP supporting non-unicast traffic transmission.

Example 17

Embodiment 17 illustrates a block diagram of the structure in a first node, as shown in fig. 17. In fig. 17, a first node 1700 comprises a first transceiver 1701 and a second transceiver 1702.

The first transceiver 1701 maintaining a first timer;

a second transceiver 1702 that transmits a first message in response to any one of the first set of conditions being met;

in embodiment 17, one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

For one embodiment, the first transceiver 1701 receives target data; the behavior maintenance first timer includes: in response to receiving the target data, starting or restarting the first timer; the target data includes a MAC SDU from DTCH, DCCH, or CCCH.

For one embodiment, the first transceiver 1701 transmits uplink data; the behavior maintenance first timer includes: starting or restarting the first timer in response to transmitting the uplink data; the target data includes a MAC SDU from a DTCH or DCCH.

For one embodiment, the second transceiver 1702 monitors a first time window for a second message, and the second transceiver 1702 determines whether to enter an RRC idle state based on whether the second message is detected; expiration of the first timer is used to trigger sending of the first message; the time of transmission of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

For one embodiment, the first transceiver 1701 switches from a first BWP to a second BWP; the behavior maintenance first timer includes: starting or maintaining the first timer in response to the behavior switching from the first BWP to the second BWP.

For one embodiment, the second transceiver 1702 monitors a first time window for a third message, and the second transceiver 1702 determines whether to camp on the second BWP based on whether the third message is detected; expiration of the first timer is used to trigger sending of the first message; a transmission time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP in accordance with whether the third message is detected comprises: not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

The first transceiver 1701 includes, for one embodiment, at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

For one embodiment, the second transceiver 1702 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 18

Embodiment 18 is a block diagram illustrating the structure of a first node, as shown in fig. 18. In fig. 18, a first node 1800 includes a first transceiver 1801 and a second transceiver 1802.

A first transceiver 1801, which receives a first signaling and a second signaling;

a second transceiver 1802 that receives the first signal and the second signal;

in embodiment 18, the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field, the second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the frequency domain resources occupied by the first signal are a first set of subcarriers, the frequency domain resources occupied by the second signal are a second set of subcarriers, the first set of subcarriers and the second set of subcarriers belong to a target BWP, and the first set of subcarriers and the second set of subcarriers are orthogonal in the frequency domain.

As a sub-embodiment of this embodiment, the first set of subcarriers comprises a positive integer number of subcarriers greater than 1.

As a sub-embodiment of this embodiment, the second set of subcarriers comprises a positive integer number of subcarriers greater than 1.

As an embodiment, both the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a target set of control resources, the target set of control resources being associated to a first set of reference signal resources and a second set of reference signal resources; the first domain comprised by the first signaling is used to indicate the first reference signal resource from the first set of reference signal resources of the first type; the second field comprised by the second signaling is used to indicate the second reference signal resource from the set of reference signal resources of the second type.

As an embodiment, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set are overlapped; the set of search spaces associated with the first set of control resources is associated with the first identity and the set of search spaces associated with the second set of control resources is not associated with the first identity; the demodulation reference signals of the control signaling in the second set of control resources are quasi co-located with the demodulation reference signals of the control signaling in the first set of control resources.

As a sub-embodiment of this embodiment, the first identifier is an integer.

As a sub-embodiment of this embodiment, the first identifier is a CORESET Pool ID.

For one embodiment, the first transceiver 1801 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

For one embodiment, the second transceiver 1802 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 19

Embodiment 19 illustrates a block diagram of the structure in a second node, as shown in fig. 19. In fig. 19, the second node 1900 includes a third transceiver 1901.

A third transceiver 1901 that receives the first message;

in embodiment 19, the sender of the first message comprises a first node that maintains a first timer and, in response to any one of a first set of conditions being met, sends a first message; one condition in the first set of conditions is expiration of the first timer; the first message is used to indicate at least one non-unicast identity; the first node is in a first RRC state when sending the first message; the first RRC state is an RRC connected state or the first RRC state is an RRC inactive state.

As an embodiment, the third transceiver 1901 transmits target data; the first node receiving the target data; the behavior maintenance first timer includes: in response to receiving the target data, the first node starting or restarting the first timer; the target data includes a MAC SDU from DTCH, DCCH, or CCCH.

For one embodiment, the third transceiver 1901 receives uplink data; the first node sends the uplink data; the behavior maintenance first timer includes: in response to sending the uplink data, the first node starts or restarts the first timer; the uplink data includes MAC SDUs from DTCH or DCCH.

As an embodiment, the third transceiver 1901 transmits a second message in a first time window; the first node determines whether to enter an RRC idle state according to whether the second message is detected; expiration of the first timer is used to trigger the first node to send the first message; a transmission time of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the first node detects the second message, and entering the RRC idle state when the first node does not detect the second message.

For one embodiment, the third transceiver 1901 determines that the first node is handed off from a first BWP to a second BWP; the behavior maintenance first timer includes: the first node starts or maintains the first timer in response to the behavior switching from the first BWP to the second BWP.

For one embodiment, the third transceiver 1901 transmits a third message in a first time window; the first node determining whether to camp on the second BWP based on whether the third message is detected; expiration of the first timer is used to trigger the first node to send the first message; a transmission time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP based on whether the third message is detected comprises: the first node does not reside the second BWP when the third message is detected and the first node resides the second BWP when the third message is not detected.

For one embodiment, the third transceiver 1901 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, the receive processor 470, and the controller/processor 475 in embodiment 4.

Example 20

Embodiment 20 illustrates a block diagram of the structure in a second node, as shown in fig. 20. In fig. 20, the second node 2000 comprises a third transceiver 2001.

A third transceiver 2001 which transmits the first signaling and the second signaling; and transmitting the first signal and the second signal;

in embodiment 20, the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; the time domain resources occupied by the first signal and the time domain resources occupied by the second signal are overlapped; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resources of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resources of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

As an embodiment, the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set are overlapped; the search space set associated with the first set of control resources is associated to the first identity, the search space set associated with the second set of control resources is not associated to the first identity; the demodulation reference signals of the control signaling in the second set of control resources are quasi co-located with the demodulation reference signals of the control signaling in the first set of control resources.

For one embodiment, the third transceiver 2001 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, the receive processor 470, and the controller/processor 475 in embodiment 4.

For one embodiment, the fourth transceiver 2002 comprises at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, the receive processor 470, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The first node in this application includes but not limited to wireless communication devices such as cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicle, RSU, aircraft, unmanned aerial vehicle, remote control plane. The second node in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an aerial base station, an RSU, an unmanned aerial vehicle, a test device, a transceiver device or a signaling tester simulating a partial function of a base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node for use in wireless communications, comprising:

a first transceiver to maintain a first timer;

2. A first node for use in wireless communications, comprising:

a first transceiver to receive a first signaling and a second signaling;

a second transceiver to receive the first signal and the second signal;

wherein the first signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the first signal, and the second signaling is used to determine at least one of a time domain resource or a frequency domain resource occupied by the second signal; overlapping time domain resources occupied by the first signal and time domain resources occupied by the second signal; the first signaling comprises a first field used to indicate a first reference signal resource; the second signaling comprises a second field used to indicate a second reference signal resource; the first reference signal resource and the second reference signal resource are different; the demodulation reference signal and target reference signal resource of the channel occupied by the first signal are quasi co-located, and the demodulation reference signal and target reference signal resource of the channel occupied by the second signal are quasi co-located; the target reference signal resource is one of the first reference signal resource or the second reference signal resource; the priority of the first signal and the priority of the second signal are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource, or the RNTI scrambling the CRC carried by the first signaling and the RNTI scrambling the CRC carried by the second signaling are used to determine the target reference signal resource from the first reference signal resource and the second reference signal resource.

3. The first node of claim 1 or 2, wherein the first transceiver receives target data; the behavior maintenance first timer includes: in response to receiving the target data, starting or restarting the first timer; the target data includes a MAC SDU from DTCH, DCCH, or CCCH.

4. The first node according to any of claims 1-3, wherein the second transceiver monitors for a second message in a first time window, and the second transceiver determines whether to enter an RRC idle state based on whether the second message is detected; expiration of the first timer is used to trigger sending of the first message; the time of transmission of the first message is used to determine the first time window; the behavior determining whether to enter an RRC idle state based on whether the second message is detected comprises: not entering the RRC idle state when the second message is detected, and entering the RRC idle state when the second message is not detected.

5. Method in a first node according to claim 1 or 2, wherein the first transceiver is handed over from a first BWP to a second BWP; the behavior maintenance first timer includes: starting or maintaining the first timer in response to the behavior switching from the first BWP to the second BWP.

6. The first node of claim 5, wherein the second transceiver monitors for a third message in a first time window, and wherein the second transceiver determines whether to camp on the second BWP based on whether the third message is detected; expiration of the first timer is used to trigger sending of the first message; a transmission time of the first message is used to determine the first time window; the act of determining whether to camp on the second BWP in accordance with whether the third message is detected comprises: not camping on the second BWP when the third message is detected, and camping on the second BWP when the third message is not detected.

7. The first node according to any of claims 2-6, wherein the frequency domain resources occupied by the first signal are a first set of subcarriers, the frequency domain resources occupied by the second signal are a second set of subcarriers, the first set of subcarriers and the second set of subcarriers belong to a target BWP, and the first set of subcarriers and the second set of subcarriers are orthogonal in frequency domain.

8. The first node according to any of claims 2 to 7, wherein the frequency domain resources occupied by the first signalling and the frequency domain resources occupied by the second signalling both belong to a target set of control resources, which target set of control resources is associated to a first type of reference signal resource set and a second type of reference signal resource set; the first domain comprised by the first signaling is used to indicate the first reference signal resource from the first set of reference signal resources of the first type; the second field comprised by the second signaling is used to indicate the second reference signal resource from the set of reference signal resources of the second type.

9. The method in the first node according to any of claims 2 to 7, wherein the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second signaling belong to a first control resource set and a second control resource set, respectively, and the frequency domain resources occupied by the first control resource set and the frequency domain resources occupied by the second control resource set overlap; the search space set associated with the first set of control resources is associated to the first identity, the search space set associated with the second set of control resources is not associated to the first identity; the demodulation reference signals of the control signaling in the second set of control resources are quasi co-located with the demodulation reference signals of the control signaling in the first set of control resources.

10. A second node for use in wireless communications, comprising:

a third transceiver to receive the first message;

11. A method in a first node in wireless communication, comprising:

maintaining the first timer;

12. A method in a second node in wireless communication, comprising:

receiving a first message;